890 lines
26 KiB
C
890 lines
26 KiB
C
/*
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* Copyright 2008 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#include "jscript.h"
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#include "engine.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(jscript);
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typedef struct {
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jsdisp_t dispex;
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builtin_invoke_t value_proc;
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const WCHAR *name;
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DWORD flags;
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scope_chain_t *scope_chain;
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bytecode_t *code;
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function_code_t *func_code;
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DWORD length;
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} FunctionInstance;
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typedef struct {
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jsdisp_t jsdisp;
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FunctionInstance *function;
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jsval_t *buf;
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call_frame_t *frame;
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unsigned argc;
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} ArgumentsInstance;
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static inline FunctionInstance *function_from_jsdisp(jsdisp_t *jsdisp)
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{
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return CONTAINING_RECORD(jsdisp, FunctionInstance, dispex);
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}
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static inline FunctionInstance *function_from_vdisp(vdisp_t *vdisp)
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{
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return function_from_jsdisp(vdisp->u.jsdisp);
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}
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static inline FunctionInstance *function_this(vdisp_t *jsthis)
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{
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return is_vclass(jsthis, JSCLASS_FUNCTION) ? function_from_vdisp(jsthis) : NULL;
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}
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static inline ArgumentsInstance *arguments_from_jsdisp(jsdisp_t *jsdisp)
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{
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return CONTAINING_RECORD(jsdisp, ArgumentsInstance, jsdisp);
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}
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static const WCHAR prototypeW[] = {'p','r','o','t','o','t', 'y', 'p','e',0};
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static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
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static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
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static const WCHAR applyW[] = {'a','p','p','l','y',0};
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static const WCHAR callW[] = {'c','a','l','l',0};
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static const WCHAR argumentsW[] = {'a','r','g','u','m','e','n','t','s',0};
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static HRESULT Arguments_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
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jsval_t *r)
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{
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FIXME("\n");
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return E_NOTIMPL;
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}
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static void Arguments_destructor(jsdisp_t *jsdisp)
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{
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ArgumentsInstance *arguments = (ArgumentsInstance*)jsdisp;
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TRACE("(%p)\n", arguments);
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if(arguments->buf) {
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unsigned i;
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for(i = 0; i < arguments->argc; i++)
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jsval_release(arguments->buf[i]);
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heap_free(arguments->buf);
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}
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jsdisp_release(&arguments->function->dispex);
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heap_free(arguments);
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}
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static unsigned Arguments_idx_length(jsdisp_t *jsdisp)
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{
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ArgumentsInstance *arguments = (ArgumentsInstance*)jsdisp;
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return arguments->argc;
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}
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static jsval_t *get_argument_ref(ArgumentsInstance *arguments, unsigned idx)
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{
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if(arguments->buf)
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return arguments->buf + idx;
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if(arguments->frame->base_scope->frame || idx >= arguments->frame->function->param_cnt)
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return arguments->jsdisp.ctx->stack + arguments->frame->arguments_off + idx;
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return NULL;
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}
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static HRESULT Arguments_idx_get(jsdisp_t *jsdisp, unsigned idx, jsval_t *r)
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{
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ArgumentsInstance *arguments = (ArgumentsInstance*)jsdisp;
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jsval_t *ref;
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TRACE("%p[%u]\n", arguments, idx);
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if((ref = get_argument_ref(arguments, idx)))
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return jsval_copy(*ref, r);
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/* FIXME: Accessing by name won't work for duplicated argument names */
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return jsdisp_propget_name(arguments->frame->base_scope->jsobj, arguments->function->func_code->params[idx], r);
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}
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static HRESULT Arguments_idx_put(jsdisp_t *jsdisp, unsigned idx, jsval_t val)
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{
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ArgumentsInstance *arguments = (ArgumentsInstance*)jsdisp;
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jsval_t *ref;
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HRESULT hres;
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TRACE("%p[%u] = %s\n", arguments, idx, debugstr_jsval(val));
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if((ref = get_argument_ref(arguments, idx))) {
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jsval_t copy;
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hres = jsval_copy(val, ©);
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if(FAILED(hres))
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return hres;
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jsval_release(*ref);
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*ref = copy;
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return S_OK;
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}
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/* FIXME: Accessing by name won't work for duplicated argument names */
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return jsdisp_propput_name(arguments->frame->base_scope->jsobj, arguments->function->func_code->params[idx], val);
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}
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static const builtin_info_t Arguments_info = {
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JSCLASS_ARGUMENTS,
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{NULL, Arguments_value, 0},
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0, NULL,
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Arguments_destructor,
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NULL,
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Arguments_idx_length,
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Arguments_idx_get,
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Arguments_idx_put
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};
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HRESULT setup_arguments_object(script_ctx_t *ctx, call_frame_t *frame)
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{
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ArgumentsInstance *args;
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HRESULT hres;
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static const WCHAR caleeW[] = {'c','a','l','l','e','e',0};
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args = heap_alloc_zero(sizeof(*args));
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if(!args)
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return E_OUTOFMEMORY;
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hres = init_dispex_from_constr(&args->jsdisp, ctx, &Arguments_info, ctx->object_constr);
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if(FAILED(hres)) {
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heap_free(args);
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return hres;
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}
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args->function = function_from_jsdisp(jsdisp_addref(frame->function_instance));
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args->argc = frame->argc;
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args->frame = frame;
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hres = jsdisp_propput_dontenum(&args->jsdisp, lengthW, jsval_number(args->argc));
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if(SUCCEEDED(hres))
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hres = jsdisp_propput_dontenum(&args->jsdisp, caleeW, jsval_disp(to_disp(&args->function->dispex)));
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if(SUCCEEDED(hres))
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hres = jsdisp_propput(frame->base_scope->jsobj, argumentsW, PROPF_DONTDELETE, jsval_obj(&args->jsdisp));
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if(FAILED(hres)) {
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jsdisp_release(&args->jsdisp);
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return hres;
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}
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frame->arguments_obj = &args->jsdisp;
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return S_OK;
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}
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void detach_arguments_object(jsdisp_t *args_disp)
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{
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ArgumentsInstance *arguments = arguments_from_jsdisp(args_disp);
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call_frame_t *frame = arguments->frame;
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const BOOL on_stack = frame->base_scope->frame == frame;
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HRESULT hres;
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/* Reset arguments value to cut the reference cycle. Note that since all activation contexts have
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* their own arguments property, it's impossible to use prototype's one during name lookup */
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jsdisp_propput_name(frame->base_scope->jsobj, argumentsW, jsval_undefined());
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arguments->frame = NULL;
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/* Don't bother coppying arguments if call frame holds the last reference. */
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if(arguments->jsdisp.ref > 1) {
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arguments->buf = heap_alloc(arguments->argc * sizeof(*arguments->buf));
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if(arguments->buf) {
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int i;
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for(i = 0; i < arguments->argc ; i++) {
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if(on_stack || i >= frame->function->param_cnt)
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hres = jsval_copy(arguments->jsdisp.ctx->stack[frame->arguments_off + i], arguments->buf+i);
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else
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hres = jsdisp_propget_name(frame->base_scope->jsobj, frame->function->params[i], arguments->buf+i);
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if(FAILED(hres))
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arguments->buf[i] = jsval_undefined();
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}
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}else {
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ERR("out of memory\n");
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arguments->argc = 0;
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}
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}
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jsdisp_release(frame->arguments_obj);
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}
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static HRESULT invoke_source(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_obj, unsigned argc, jsval_t *argv,
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BOOL is_constructor, BOOL caller_execs_source, jsval_t *r)
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{
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jsdisp_t *var_disp;
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DWORD exec_flags = 0;
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HRESULT hres;
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if(ctx->state == SCRIPTSTATE_UNINITIALIZED || ctx->state == SCRIPTSTATE_CLOSED) {
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WARN("Script engine state does not allow running code.\n");
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return E_UNEXPECTED;
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}
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if(!function->func_code) {
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FIXME("no source\n");
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return E_FAIL;
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}
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hres = create_dispex(ctx, NULL, NULL, &var_disp);
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if(FAILED(hres))
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return hres;
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if(caller_execs_source)
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exec_flags |= EXEC_RETURN_TO_INTERP;
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if(is_constructor)
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exec_flags |= EXEC_CONSTRUCTOR;
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hres = exec_source(ctx, exec_flags, function->code, function->func_code, function->scope_chain, this_obj,
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&function->dispex, var_disp, argc, argv, r);
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jsdisp_release(var_disp);
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return hres;
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}
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static HRESULT invoke_value_proc(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_disp, WORD flags,
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unsigned argc, jsval_t *argv, jsval_t *r)
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{
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vdisp_t vthis;
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HRESULT hres;
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if(this_disp)
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set_disp(&vthis, this_disp);
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else if(ctx->host_global)
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set_disp(&vthis, ctx->host_global);
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else
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set_jsdisp(&vthis, ctx->global);
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hres = function->value_proc(ctx, &vthis, flags, argc, argv, r);
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vdisp_release(&vthis);
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return hres;
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}
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static HRESULT call_function(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_obj,
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unsigned argc, jsval_t *argv, BOOL caller_execs_source, jsval_t *r)
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{
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if(function->value_proc)
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return invoke_value_proc(ctx, function, this_obj, DISPATCH_METHOD, argc, argv, r);
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return invoke_source(ctx, function, this_obj, argc, argv, FALSE, caller_execs_source, r);
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}
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static HRESULT function_to_string(FunctionInstance *function, jsstr_t **ret)
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{
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jsstr_t *str;
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static const WCHAR native_prefixW[] = {'\n','f','u','n','c','t','i','o','n',' '};
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static const WCHAR native_suffixW[] =
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{'(',')',' ','{','\n',' ',' ',' ',' ','[','n','a','t','i','v','e',' ','c','o','d','e',']','\n','}','\n'};
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if(function->value_proc) {
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DWORD name_len;
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WCHAR *ptr;
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name_len = strlenW(function->name);
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str = jsstr_alloc_buf((sizeof(native_prefixW)+sizeof(native_suffixW))/sizeof(WCHAR) + name_len, &ptr);
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if(!str)
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return E_OUTOFMEMORY;
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memcpy(ptr, native_prefixW, sizeof(native_prefixW));
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memcpy(ptr += sizeof(native_prefixW)/sizeof(WCHAR), function->name, name_len*sizeof(WCHAR));
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memcpy(ptr + name_len, native_suffixW, sizeof(native_suffixW));
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}else {
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str = jsstr_alloc_len(function->func_code->source, function->func_code->source_len);
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if(!str)
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return E_OUTOFMEMORY;
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}
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*ret = str;
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return S_OK;
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}
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HRESULT Function_invoke(jsdisp_t *func_this, IDispatch *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
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{
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const BOOL caller_execs_source = (flags & DISPATCH_JSCRIPT_CALLEREXECSSOURCE) != 0;
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FunctionInstance *function;
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TRACE("func %p this %p\n", func_this, jsthis);
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assert(is_class(func_this, JSCLASS_FUNCTION));
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function = (FunctionInstance*)func_this;
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flags &= ~DISPATCH_JSCRIPT_INTERNAL_MASK;
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if(function->value_proc)
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return invoke_value_proc(function->dispex.ctx, function, jsthis, flags, argc, argv, r);
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if(flags == DISPATCH_CONSTRUCT) {
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jsdisp_t *this_obj;
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HRESULT hres;
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hres = create_object(function->dispex.ctx, &function->dispex, &this_obj);
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if(FAILED(hres))
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return hres;
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hres = invoke_source(function->dispex.ctx, function, to_disp(this_obj), argc, argv, TRUE, caller_execs_source, r);
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jsdisp_release(this_obj);
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return hres;
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}
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assert(flags == DISPATCH_METHOD);
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return invoke_source(function->dispex.ctx, function, jsthis, argc, argv, FALSE, caller_execs_source, r);
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}
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static HRESULT Function_get_length(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
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{
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TRACE("%p\n", jsthis);
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*r = jsval_number(function_from_jsdisp(jsthis)->length);
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return S_OK;
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}
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static HRESULT Function_set_length(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t value)
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{
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FIXME("\n");
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return E_NOTIMPL;
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}
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static HRESULT Function_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
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jsval_t *r)
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{
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FunctionInstance *function;
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jsstr_t *str;
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HRESULT hres;
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TRACE("\n");
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if(!(function = function_this(jsthis)))
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return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
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hres = function_to_string(function, &str);
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if(FAILED(hres))
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return hres;
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if(r)
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*r = jsval_string(str);
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else
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jsstr_release(str);
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return S_OK;
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}
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static HRESULT array_to_args(script_ctx_t *ctx, jsdisp_t *arg_array, unsigned *argc, jsval_t **ret)
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{
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jsval_t *argv, val;
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DWORD length, i;
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HRESULT hres;
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hres = jsdisp_propget_name(arg_array, lengthW, &val);
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if(FAILED(hres))
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return hres;
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hres = to_uint32(ctx, val, &length);
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jsval_release(val);
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if(FAILED(hres))
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return hres;
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argv = heap_alloc(length * sizeof(*argv));
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if(!argv)
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return E_OUTOFMEMORY;
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for(i=0; i<length; i++) {
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hres = jsdisp_get_idx(arg_array, i, argv+i);
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if(hres == DISP_E_UNKNOWNNAME) {
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argv[i] = jsval_undefined();
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}else if(FAILED(hres)) {
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while(i--)
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jsval_release(argv[i]);
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heap_free(argv);
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return hres;
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}
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}
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*argc = length;
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*ret = argv;
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return S_OK;
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}
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static HRESULT Function_apply(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
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{
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FunctionInstance *function;
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jsval_t *args = NULL;
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unsigned i, cnt = 0;
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IDispatch *this_obj = NULL;
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HRESULT hres = S_OK;
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TRACE("\n");
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if(!(function = function_this(jsthis)) && (jsthis->flags & VDISP_JSDISP))
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return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
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if(argc) {
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if(!is_undefined(argv[0]) && !is_null(argv[0])) {
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hres = to_object(ctx, argv[0], &this_obj);
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if(FAILED(hres))
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return hres;
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}
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}
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if(argc >= 2) {
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jsdisp_t *arg_array = NULL;
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if(is_object_instance(argv[1])) {
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arg_array = iface_to_jsdisp(get_object(argv[1]));
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if(arg_array &&
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(!is_class(arg_array, JSCLASS_ARRAY) && !is_class(arg_array, JSCLASS_ARGUMENTS) )) {
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jsdisp_release(arg_array);
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arg_array = NULL;
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}
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}
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if(arg_array) {
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hres = array_to_args(ctx, arg_array, &cnt, &args);
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jsdisp_release(arg_array);
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}else {
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FIXME("throw TypeError\n");
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hres = E_FAIL;
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}
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}
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if(SUCCEEDED(hres)) {
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if(function) {
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hres = call_function(ctx, function, this_obj, cnt, args, (flags & DISPATCH_JSCRIPT_CALLEREXECSSOURCE) != 0, r);
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}else {
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jsval_t res;
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hres = disp_call_value(ctx, jsthis->u.disp, this_obj, DISPATCH_METHOD, cnt, args, &res);
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if(SUCCEEDED(hres)) {
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if(r)
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*r = res;
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else
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jsval_release(res);
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}
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}
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}
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|
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if(this_obj)
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IDispatch_Release(this_obj);
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for(i=0; i < cnt; i++)
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jsval_release(args[i]);
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heap_free(args);
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return hres;
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}
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static HRESULT Function_call(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
|
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jsval_t *r)
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|
{
|
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FunctionInstance *function;
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IDispatch *this_obj = NULL;
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unsigned cnt = 0;
|
|
HRESULT hres;
|
|
|
|
TRACE("\n");
|
|
|
|
if(!(function = function_this(jsthis)))
|
|
return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
|
|
|
|
if(argc) {
|
|
if(!is_undefined(argv[0]) && !is_null(argv[0])) {
|
|
hres = to_object(ctx, argv[0], &this_obj);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}
|
|
|
|
cnt = argc-1;
|
|
}
|
|
|
|
hres = call_function(ctx, function, this_obj, cnt, argv+1, (flags & DISPATCH_JSCRIPT_CALLEREXECSSOURCE) != 0, r);
|
|
|
|
if(this_obj)
|
|
IDispatch_Release(this_obj);
|
|
return hres;
|
|
}
|
|
|
|
HRESULT Function_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
|
|
jsval_t *r)
|
|
{
|
|
FunctionInstance *function;
|
|
|
|
TRACE("\n");
|
|
|
|
if(!is_vclass(jsthis, JSCLASS_FUNCTION)) {
|
|
ERR("dispex is not a function\n");
|
|
return E_FAIL;
|
|
}
|
|
|
|
function = (FunctionInstance*)jsthis->u.jsdisp;
|
|
|
|
assert(function->value_proc != NULL);
|
|
return invoke_value_proc(ctx, function, NULL, flags, argc, argv, r);
|
|
}
|
|
|
|
HRESULT Function_get_value(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
|
|
{
|
|
jsstr_t *str;
|
|
HRESULT hres;
|
|
|
|
TRACE("\n");
|
|
|
|
hres = function_to_string(function_from_jsdisp(jsthis), &str);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
*r = jsval_string(str);
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT Function_get_arguments(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
|
|
{
|
|
FunctionInstance *function = function_from_jsdisp(jsthis);
|
|
call_frame_t *frame;
|
|
HRESULT hres;
|
|
|
|
TRACE("\n");
|
|
|
|
for(frame = ctx->call_ctx; frame; frame = frame->prev_frame) {
|
|
if(frame->function_instance == &function->dispex) {
|
|
if(!frame->arguments_obj) {
|
|
hres = setup_arguments_object(ctx, frame);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}
|
|
*r = jsval_obj(jsdisp_addref(frame->arguments_obj));
|
|
return S_OK;
|
|
}
|
|
}
|
|
|
|
*r = jsval_null();
|
|
return S_OK;
|
|
}
|
|
|
|
static void Function_destructor(jsdisp_t *dispex)
|
|
{
|
|
FunctionInstance *This = (FunctionInstance*)dispex;
|
|
|
|
if(This->code)
|
|
release_bytecode(This->code);
|
|
if(This->scope_chain)
|
|
scope_release(This->scope_chain);
|
|
heap_free(This);
|
|
}
|
|
|
|
static const builtin_prop_t Function_props[] = {
|
|
{applyW, Function_apply, PROPF_METHOD|2},
|
|
{argumentsW, NULL, 0, Function_get_arguments, builtin_set_const},
|
|
{callW, Function_call, PROPF_METHOD|1},
|
|
{lengthW, NULL, 0, Function_get_length, Function_set_length},
|
|
{toStringW, Function_toString, PROPF_METHOD}
|
|
};
|
|
|
|
static const builtin_info_t Function_info = {
|
|
JSCLASS_FUNCTION,
|
|
DEFAULT_FUNCTION_VALUE,
|
|
sizeof(Function_props)/sizeof(*Function_props),
|
|
Function_props,
|
|
Function_destructor,
|
|
NULL
|
|
};
|
|
|
|
static const builtin_prop_t FunctionInst_props[] = {
|
|
{argumentsW, NULL, 0, Function_get_arguments, builtin_set_const},
|
|
{lengthW, NULL, 0, Function_get_length, Function_set_length}
|
|
};
|
|
|
|
static const builtin_info_t FunctionInst_info = {
|
|
JSCLASS_FUNCTION,
|
|
DEFAULT_FUNCTION_VALUE,
|
|
sizeof(FunctionInst_props)/sizeof(*FunctionInst_props),
|
|
FunctionInst_props,
|
|
Function_destructor,
|
|
NULL
|
|
};
|
|
|
|
static HRESULT create_function(script_ctx_t *ctx, const builtin_info_t *builtin_info, DWORD flags,
|
|
BOOL funcprot, jsdisp_t *prototype, FunctionInstance **ret)
|
|
{
|
|
FunctionInstance *function;
|
|
HRESULT hres;
|
|
|
|
function = heap_alloc_zero(sizeof(FunctionInstance));
|
|
if(!function)
|
|
return E_OUTOFMEMORY;
|
|
|
|
if(funcprot)
|
|
hres = init_dispex(&function->dispex, ctx, builtin_info, prototype);
|
|
else if(builtin_info)
|
|
hres = init_dispex_from_constr(&function->dispex, ctx, builtin_info, ctx->function_constr);
|
|
else
|
|
hres = init_dispex_from_constr(&function->dispex, ctx, &FunctionInst_info, ctx->function_constr);
|
|
if(FAILED(hres)) {
|
|
heap_free(function);
|
|
return hres;
|
|
}
|
|
|
|
function->flags = flags;
|
|
function->length = flags & PROPF_ARGMASK;
|
|
|
|
*ret = function;
|
|
return S_OK;
|
|
}
|
|
|
|
static inline HRESULT set_prototype(script_ctx_t *ctx, jsdisp_t *dispex, jsdisp_t *prototype)
|
|
{
|
|
return jsdisp_propput_dontenum(dispex, prototypeW, jsval_obj(prototype));
|
|
}
|
|
|
|
HRESULT create_builtin_function(script_ctx_t *ctx, builtin_invoke_t value_proc, const WCHAR *name,
|
|
const builtin_info_t *builtin_info, DWORD flags, jsdisp_t *prototype, jsdisp_t **ret)
|
|
{
|
|
FunctionInstance *function;
|
|
HRESULT hres;
|
|
|
|
hres = create_function(ctx, builtin_info, flags, FALSE, NULL, &function);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(builtin_info)
|
|
hres = jsdisp_propput_const(&function->dispex, lengthW, jsval_number(function->length));
|
|
if(SUCCEEDED(hres))
|
|
hres = set_prototype(ctx, &function->dispex, prototype);
|
|
if(FAILED(hres)) {
|
|
jsdisp_release(&function->dispex);
|
|
return hres;
|
|
}
|
|
|
|
function->value_proc = value_proc;
|
|
function->name = name;
|
|
|
|
*ret = &function->dispex;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT set_constructor_prop(script_ctx_t *ctx, jsdisp_t *constr, jsdisp_t *prot)
|
|
{
|
|
static const WCHAR constructorW[] = {'c','o','n','s','t','r','u','c','t','o','r',0};
|
|
|
|
return jsdisp_propput_dontenum(prot, constructorW, jsval_obj(constr));
|
|
}
|
|
|
|
HRESULT create_builtin_constructor(script_ctx_t *ctx, builtin_invoke_t value_proc, const WCHAR *name,
|
|
const builtin_info_t *builtin_info, DWORD flags, jsdisp_t *prototype, jsdisp_t **ret)
|
|
{
|
|
jsdisp_t *constr;
|
|
HRESULT hres;
|
|
|
|
hres = create_builtin_function(ctx, value_proc, name, builtin_info, flags, prototype, &constr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = set_constructor_prop(ctx, constr, prototype);
|
|
if(FAILED(hres)) {
|
|
jsdisp_release(constr);
|
|
return hres;
|
|
}
|
|
|
|
*ret = constr;
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT create_source_function(script_ctx_t *ctx, bytecode_t *code, function_code_t *func_code,
|
|
scope_chain_t *scope_chain, jsdisp_t **ret)
|
|
{
|
|
FunctionInstance *function;
|
|
jsdisp_t *prototype;
|
|
HRESULT hres;
|
|
|
|
hres = create_object(ctx, NULL, &prototype);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = create_function(ctx, NULL, PROPF_CONSTR, FALSE, NULL, &function);
|
|
if(SUCCEEDED(hres)) {
|
|
hres = set_prototype(ctx, &function->dispex, prototype);
|
|
if(SUCCEEDED(hres))
|
|
hres = set_constructor_prop(ctx, &function->dispex, prototype);
|
|
if(FAILED(hres))
|
|
jsdisp_release(&function->dispex);
|
|
}
|
|
jsdisp_release(prototype);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(scope_chain) {
|
|
scope_addref(scope_chain);
|
|
function->scope_chain = scope_chain;
|
|
}
|
|
|
|
bytecode_addref(code);
|
|
function->code = code;
|
|
function->func_code = func_code;
|
|
function->length = function->func_code->param_cnt;
|
|
|
|
*ret = &function->dispex;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT construct_function(script_ctx_t *ctx, unsigned argc, jsval_t *argv, IDispatch **ret)
|
|
{
|
|
WCHAR *str = NULL, *ptr;
|
|
unsigned len = 0, i = 0;
|
|
bytecode_t *code;
|
|
jsdisp_t *function;
|
|
jsstr_t **params = NULL;
|
|
int j = 0;
|
|
HRESULT hres = S_OK;
|
|
|
|
static const WCHAR function_anonymousW[] = {'f','u','n','c','t','i','o','n',' ','a','n','o','n','y','m','o','u','s','('};
|
|
static const WCHAR function_beginW[] = {')',' ','{','\n'};
|
|
static const WCHAR function_endW[] = {'\n','}',0};
|
|
|
|
if(argc) {
|
|
params = heap_alloc(argc*sizeof(*params));
|
|
if(!params)
|
|
return E_OUTOFMEMORY;
|
|
|
|
if(argc > 2)
|
|
len = (argc-2)*2; /* separating commas */
|
|
for(i=0; i < argc; i++) {
|
|
hres = to_string(ctx, argv[i], params+i);
|
|
if(FAILED(hres))
|
|
break;
|
|
len += jsstr_length(params[i]);
|
|
}
|
|
}
|
|
|
|
if(SUCCEEDED(hres)) {
|
|
len += (sizeof(function_anonymousW) + sizeof(function_beginW) + sizeof(function_endW)) / sizeof(WCHAR);
|
|
str = heap_alloc(len*sizeof(WCHAR));
|
|
if(str) {
|
|
memcpy(str, function_anonymousW, sizeof(function_anonymousW));
|
|
ptr = str + sizeof(function_anonymousW)/sizeof(WCHAR);
|
|
if(argc > 1) {
|
|
while(1) {
|
|
ptr += jsstr_flush(params[j], ptr);
|
|
if(++j == argc-1)
|
|
break;
|
|
*ptr++ = ',';
|
|
*ptr++ = ' ';
|
|
}
|
|
}
|
|
memcpy(ptr, function_beginW, sizeof(function_beginW));
|
|
ptr += sizeof(function_beginW)/sizeof(WCHAR);
|
|
if(argc)
|
|
ptr += jsstr_flush(params[argc-1], ptr);
|
|
memcpy(ptr, function_endW, sizeof(function_endW));
|
|
|
|
TRACE("%s\n", debugstr_w(str));
|
|
}else {
|
|
hres = E_OUTOFMEMORY;
|
|
}
|
|
}
|
|
|
|
while(i)
|
|
jsstr_release(params[--i]);
|
|
heap_free(params);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = compile_script(ctx, str, NULL, NULL, FALSE, FALSE, &code);
|
|
heap_free(str);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(code->global_code.func_cnt != 1 || code->global_code.var_cnt != 1) {
|
|
ERR("Invalid parser result!\n");
|
|
release_bytecode(code);
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
hres = create_source_function(ctx, code, code->global_code.funcs, NULL, &function);
|
|
release_bytecode(code);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
*ret = to_disp(function);
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT FunctionConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
|
|
jsval_t *r)
|
|
{
|
|
HRESULT hres;
|
|
|
|
TRACE("\n");
|
|
|
|
switch(flags) {
|
|
case DISPATCH_METHOD:
|
|
case DISPATCH_CONSTRUCT: {
|
|
IDispatch *ret;
|
|
|
|
hres = construct_function(ctx, argc, argv, &ret);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
*r = jsval_disp(ret);
|
|
break;
|
|
}
|
|
default:
|
|
FIXME("unimplemented flags %x\n", flags);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT FunctionProt_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
|
|
jsval_t *r)
|
|
{
|
|
FIXME("\n");
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
HRESULT init_function_constr(script_ctx_t *ctx, jsdisp_t *object_prototype)
|
|
{
|
|
FunctionInstance *prot, *constr;
|
|
HRESULT hres;
|
|
|
|
static const WCHAR FunctionW[] = {'F','u','n','c','t','i','o','n',0};
|
|
|
|
hres = create_function(ctx, &Function_info, PROPF_CONSTR, TRUE, object_prototype, &prot);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
prot->value_proc = FunctionProt_value;
|
|
prot->name = prototypeW;
|
|
|
|
hres = create_function(ctx, &FunctionInst_info, PROPF_CONSTR|1, TRUE, &prot->dispex, &constr);
|
|
if(SUCCEEDED(hres)) {
|
|
constr->value_proc = FunctionConstr_value;
|
|
constr->name = FunctionW;
|
|
hres = set_prototype(ctx, &constr->dispex, &prot->dispex);
|
|
if(SUCCEEDED(hres))
|
|
hres = set_constructor_prop(ctx, &constr->dispex, &prot->dispex);
|
|
if(FAILED(hres))
|
|
jsdisp_release(&constr->dispex);
|
|
}
|
|
jsdisp_release(&prot->dispex);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
ctx->function_constr = &constr->dispex;
|
|
return S_OK;
|
|
}
|